Investigation of twin–twin interaction in deformed magnesium alloy
Investigation of twin–twin interaction in deformed magnesium alloy
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DOI：
10.1080/14786435.2017.1417648
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发表时间：
2018-03
影响因子：
1.6
通讯作者：
Q. Sun;A. Ostapovets;Xi-Yan Zhang;Li Tan;Qing Liu
中科院分区：
文献类型：
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作者：
Q. Sun;A. Ostapovets;Xi-Yan Zhang;Li Tan;Qing Liu
摘要利用透射电子显微镜，我们表征了变形镁合金中共享同一区轴的不同孪晶变体之间的相互作用所引起的边界结构。我们发现孪晶-孪晶界面可以采用平行于相互作用孪晶的（0 0 0 2）基面或棱柱面或孪晶面的惯习面。为了研究各种孪晶-孪晶界面的形成机制，我们还进行了原子模拟。结果表明，孪晶-孪晶界面的形成可能与在相互作用孪晶的基面-棱柱面上滑移的孪晶断开的反应有关。
Abstract Using transmission electron microscopy, we characterised the structures of the boundary caused by the interactions between different twin variants that share the same zone axis in a deformed magnesium alloy. We found that the twin–twin boundaries can adopt the habit planes that are parallel to the (0 0 0 2) basal plane or the prismatic plane or the twinning plane of the interacting twins. To investigate the formation mechanism of various twin–twin boundaries, we also performed atomic simulations. The results indicate that the formation of a twin–twin boundary may be related to the reaction of twinning disconnections that glide on the basal-prismatic planes of the interacting twins.